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A130515 as a simple table

na(n)
21
34
43
517
629
727
880
9125
10108
11260
12356
13300
14637
15832
16675
171341
181665
191323
202500
213025
222352
234304
245072
253888
266929
278036
286075
2910625
3012125
319075
3215616
3317629
3413068
3522212
3624804
3718252
3830685
3934000
4024843
4141405
4245521

[1,4,3,17,29,27,80,125,108,260,356,300,637,832,
 675,1341,1665,1323,2500,3025,2352,4304,5072,3888,
 6929,8036,6075,10625,12125,9075,15616,17629,13068,
 22212,24804,18252,30685,34000,24843,41405,45521]